JP2011204370A - Board connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a board connector capable of arranging a locking member at a fixed position on whichever the side of the board it is mounted, while the same connector housing and the same terminal fitting group are used.SOLUTION: The board connector is provided with a connector housing 20 fixed to a circuit board P; terminal fittings 10 held in a bent state in terminal insertion holes 26 fitted to the connector housing 20; and a locking claw 24 engaged with a counterpart connector housing insertion-coupled with the connector housing 20 to hold each connector housing in an insertion-coupled state, with a board mounting face 22 which is brought into contact with the circuit board P of the connector housing 20 and a face of an auxiliary board mounting face 30 at the other side formed in parallel with each other. The terminal insertion holes 26 are arranged in line symmetry to a symmetric axis S located in the middle of a rear-face wall 23, and the connector housing 20 has a mounting part provided to be fixed to the circuit board P.

Description

  The present invention relates to a board connector fixed to a board.

  Conventionally, as a connector for a board fixed on a circuit board, the one described in Patent Document 1 is known. In this board connector, a plurality of terminal fittings bent to the board side are arranged in a resin connector housing fixed to the board in multiple stages, and are fixed to the board by mounting portions provided in the connector housing. Also, one end of the terminal fitting bent to the board side is soldered and electrically connected to a land on the board, and the other end is connected to the terminal fitting of the mating connector. And when a mutual connector arrives at a fitting, a mutual connector is fitted and hold | maintained by the locking member provided between both connectors.

JP-A-5-326049

  This type of board connector can be mounted from either the top or bottom surface of the board by turning it upside down. However, depending on whether the board connector is attached to the upper surface or the lower surface of the board connector, the lock member of the board connector is disposed at a position opposite to the opening of the connector housing. Therefore, for an operator who assembles the mating connector to the board connector, the position of the lock member differs depending on the board connector mounting position, and the insertion direction of the mating connector is confusing as well as damage to the connector and work efficiency. It becomes a problem to worsen.

  As a solution to this, a method of making the position of the lock member the same in any case by manufacturing two types of board connectors according to the mounting position on the board is conceivable. Since it is necessary to prepare two types of connector housings and terminal metal fitting groups corresponding to the respective connector housings, there is a problem that the production cost increases and the production efficiency deteriorates.

  The present invention has been completed based on the above circumstances, and the locking member is fixed at a fixed position regardless of which side of the board is mounted while using the same connector housing and the same terminal fitting group. It is an object of the present invention to provide a board connector that can be disposed on the board.

  As a means for achieving the above object, the present invention includes a connector housing made of synthetic resin fixed to a board, and a terminal insertion hole provided in a back wall of the connector housing, and is bent to the board side. And a terminal fitting connected to the board, and the connector housing engages with the lock portion of the counterpart connector housing when the counterpart connector housing is fitted in a normal insertion posture. Is a board connector in which a locked portion that holds the connector in a fitted state is provided, and one surface of the connector housing that contacts the substrate is parallel to the other surface on the opposite side. The terminal insertion holes are arranged so as to be line symmetric with respect to an intermediate position between the one surface and the opposite surface on the back wall. , The said connector housing has a feature where the mounting portion for fixing to the substrate are respectively provided in correspondence to said one surface and said other surface.

  According to the board connector having such a configuration, when being attached to the upper surface side of the board, it is fixed to the board by an attaching portion provided on one surface contacting the board, and when being attached to the lower surface side of the board, the connector housing is not reversed. It can fix to a board | substrate with the attaching part provided in the other surface. Further, at this time, the terminal fitting is arranged in the back wall of the connector housing so that each terminal insertion hole is line-symmetric with respect to an intermediate position between one surface and the other surface, and the one surface and the other Since the height dimension from the surface to each terminal insertion hole is the same, it can be bent to the board side by changing the arrangement of the terminal fittings according to the mounting direction of the connector housing. Therefore, the board connector having such a configuration can be disposed on the upper and lower surfaces of the board while keeping the position of the locked portion in a certain direction.

The following configuration is desirable as an embodiment of the present invention.
The mounting portion may be provided with an insertion hole for a fixing screw that is screwed into the substrate and fixes the connector housing. According to such a configuration, the board connector can be easily fixed to the board mounting portion by using the fixing screw.

  The mounting portion is formed integrally with the connector housing, and the insertion hole is provided so as to penetrate from the one surface to the other surface in a direction orthogonal to the one surface. Also good. According to such a configuration, since the attachment portion having the insertion hole is not in a divided state, when a connector housing is injection-molded by a molding die, a plurality of slide molds for insertion holes are not used. Can be molded.

  According to the present invention, there is provided a board connector capable of arranging a lock member at a fixed position regardless of which side of the board is mounted while using the same connector housing and the same terminal metal group. be able to.

The perspective view which showed the state which the terminal metal fitting was press-fitted in the connector housing in embodiment, and has become the bending state to the board | substrate side Side view Bottom view The rear view which showed the state which has arrange | positioned the connector housing in embodiment to the upper surface side of a circuit board IV-IV sectional view of FIG. The perspective view which showed the state which reversed the connector housing of FIG. 1, and changed the terminal metal fitting upside down Side view Plan view The rear view which showed the state which has arrange | positioned the connector housing in embodiment to the lower surface side of a circuit board XX sectional view of FIG.

<Embodiment>
An embodiment of the present invention will be described with reference to FIGS.
The board connector of the present embodiment includes a synthetic resin connector housing 20 fixed to a circuit board P corresponding to the board, and a terminal fitting 10 that is press-fitted into the connector housing 20 and bent toward the circuit board P. Is done.
As shown in FIGS. 1 to 5, the connector housing 20 has a substantially rectangular parallelepiped box shape, and has a hood portion 21 that accommodates and fits a mating connector (not shown).

  4 and 5, the connector housing 20 is disposed on the upper surface of the circuit board P so that the board mounting surface 22 provided on the outer surface of the hood portion 21 is aligned with the surface of the circuit board P. Fixed.

The hood portion 21 has a horizontally long and substantially rectangular tube shape, and the back wall 23 of the connector housing 20 that is the deepest portion of the hood portion 21 has a rectangular shape.
Inside the hood portion 21, there is a lock claw 24 corresponding to a lock portion that holds the mating state when mated with a mating connector (not shown) on the inner surface of the board mounting surface 22 side closer to the back wall 23 than the opening. Positioning ribs 25 are provided on both sides of the locking claw 24 and extend straight from the opening of the hood portion 21 to the back wall 23 of the hood portion 21 in the fitting direction to guide a mating connector (not shown) into the hood portion 21. Is provided.
The hood portion 21 is provided with a terminal insertion hole 26 for inserting the terminal fitting 10 in the back wall 23 thereof. The terminal insertion hole 26 has two stages in the thickness direction of the connector housing 20 and four rows in the width direction. Arranged at intervals.

The terminal insertion hole 26 has a rectangular shape with a flat opening, and a lead-in surface 27 having a shape that widens toward the hood portion 21 is provided at the opening edge portion in the hood portion 21.
A terminal fitting 10 having a rectangular cross-section with a predetermined length is punched into the terminal insertion hole 26 by pressing, and the terminal fitting 10 is held in a state of penetrating the back wall 23.
In this terminal fitting 10, the portion protruding from the back wall 23 into the hood portion 21 is connected to the terminal fitting 10 of the other connector (not shown), and the portion protruding from the back wall 23 to the outside of the connector housing 20 faces the circuit board P side. The tip of the circuit board P is connected to a land (not shown) of the circuit board P by soldering. As shown in FIGS. 1 and 5, the terminal fittings 10 that are arranged in two stages are formed to have different lengths so as not to contact each other when bent to the circuit board P side. The terminal fitting 10A press-fitted into the terminal insertion hole 26A near the position 22 is set shorter than the terminal fitting 10B press-fitted into the terminal insertion hole 26B located away from the board mounting surface 22.

Now, on the side surface of the connector housing 20 in the short direction, as shown in FIGS. 1 and 4, mounting portions 28 that are fixed to the circuit board P at positions on both sides of the back wall 23 extend in the thickness direction of the connector housing 20. The connector housing 20 is set to come into contact with the circuit board P when the connector housing 20 is fixed to the circuit board P.
As shown in FIG. 4, the mounting portion 28 is disposed on the circuit board P side and is set to be flush with the board mounting surface 22. The connector housing 20 is located on the opposite side of the board mounting surface 22. And an auxiliary board mounting portion 30 protruding from the outer surface of the auxiliary board.

One surface of the board mounting portion 29 is formed integrally with the board mounting surface 22 and protrudes from both sides of the board mounting surface 22, and the connector housing 20 is disposed so that the board mounting surface 22 contacts the circuit board P. The circuit board P is in contact with the circuit board P.
The auxiliary board mounting portion 30 has a shape protruding from the side surface of the connector housing 20 to both sides, and one end near the center of the surface located on the hood portion 21 side is formed to extend slightly along the side surface of the connector housing 20. Yes. The auxiliary board mounting portion 30 is configured to come into contact with the circuit board P when the connector housing 20 is arranged so that the surface opposite to the board mounting surface 22 is on the circuit board P side, and the position in contact with the circuit board P. Is provided with an auxiliary board mounting surface 30A.

  Further, a fixing screw insertion hole 31 (not shown) for fixing to the circuit board P is formed in the attachment portion 28 in a form orthogonal to the substrate attachment surface 22, and the insertion hole 31 is formed in the substrate attachment portion 29. The connector housing 20 penetrates from the surface that is flush with the board mounting surface 22 to the auxiliary board mounting surface 30A of the auxiliary board mounting portion 30 in the thickness direction of the connector housing 20.

  Thus, when the connector housing 20 is fixed to the circuit board P, a fixing screw (not shown) is inserted into the insertion hole 31 regardless of which of the board mounting part 29 and the auxiliary board mounting part 30 is arranged on the circuit board P side. Thus, the connector housing 20 can be fixed to the circuit board P. Since the insertion hole 31 provided in the mounting portion 28 extends from the substrate mounting portion 29 to the auxiliary substrate mounting portion 30 in a continuous manner, a plurality of slides are formed when the connector housing 20 is injection molded in the molding die. The insertion hole can be formed with one slide mold without using a mold.

  Further, as shown in FIG. 5, the terminal insertion hole 26 has an intermediate position between the board mounting surface 22 and the auxiliary board mounting surface 30A on the back wall 23 (the length from each surface is set to, for example, Z) as the symmetry axis S. The length Y1 to the axis of symmetry of the terminal insertion hole 26A located on the board mounting surface 22 side is arranged to be line symmetric, up to the axis of symmetry of the terminal insertion hole 26B located on the auxiliary board mounting portion 30 side. Is set to be equal to the length Y2.

  That is, the terminal metal fitting 10A inserted into the terminal insertion hole 26A and the terminal metal fitting 10B inserted into the terminal insertion hole 26B are equal in length to the symmetry axis S (Y1 = Y2), and the terminal insertion hole 26A. The length Y3 of the terminal fitting 10A inserted into the board mounting surface 22 is equal to the length Y4 of the terminal fitting 10B inserted into the terminal insertion hole 26B up to the auxiliary board mounting surface 30A.

Next, the arrangement setting on the circuit board P and the function and effect of this embodiment will be described.
4 and 5, when the board connector of the present embodiment is arranged on the upper surface side of the circuit board P, the terminal is inserted into the terminal insertion hole 26A located near the board mounting surface 22 of the connector housing 20. The terminal fitting 10A shorter than the fitting 10B is arranged in a state in which the terminal fitting 10B is disposed in the terminal insertion hole 26B located far from the board mounting surface 22 and all the terminal fittings 10 are bent toward the board mounting surface 22 side. Then, the board mounting surface 22 of the connector housing 20 is arranged so as to contact the circuit board P. Then, a fixing screw (not shown) is inserted through the insertion hole 31 opened in the auxiliary board mounting portion 30 and screwed into the circuit board P to fix the board connector.

  In this way, the board connector fixed to the upper surface side of the circuit board P is provided with a lock claw 24 that holds a mating state with a mating connector (not shown) on the bottom surface side of the hood portion 21 so that the operator can When fitting the mating connector to the board connector of the present embodiment fixed to the board P, the locking portion of the mating connector engaged with the lock claw 24 is arranged downward and fitted.

  On the other hand, as shown in FIGS. 9 and 10, when the board connector of the present embodiment is arranged on the lower surface side of the circuit board P, the terminal is inserted into the terminal insertion hole 26B located far from the board mounting surface 22 of the connector housing 20. The metal fitting 10A is placed in the terminal insertion hole 26B located close to the board mounting surface 22 and the terminal metal fitting 10B is arranged so that all the terminal metal fittings are bent toward the auxiliary board mounting portion 30 (see FIGS. 6 to 8). The auxiliary board mounting surface 30A of the auxiliary board mounting part 30 is arranged so as to be in contact with the circuit board P. Then, a fixing screw (not shown) is inserted from an insertion hole opened in the board mounting portion 30, and the board connector is fixed to the circuit board P. Here, the length Y4 of the auxiliary board mounting surface 30A and the terminal metal fitting 10A is equal to the length Y3 (see FIG. 5) of the board mounting surface 22 and the terminal metal fitting 10A when it is configured to be attached to the upper surface side. Therefore, there is no problem in attaching the board connector to the circuit board P.

As described above, when the board connector according to the present embodiment is fixed to the lower surface side of the circuit board P, the terminal metal fitting 10 is arranged upside down as compared with the case where the terminal metal fitting 10 is attached to the upper surface side. Can also be installed and fixed on the circuit board P by turning it upside down, and even when it is fixed on the lower surface side of the circuit board P, it is locked in the same way as when it is mounted on the upper surface side. The nail | claw 24 can be distribute | arranged to the bottom face side of the food | hood part 21. FIG.
That is, according to the present embodiment, the lock member can be arranged and fixed at a fixed position regardless of which side of the circuit board is attached without manufacturing two types of board connectors.

  The operator can perform the fitting operation in the predetermined insertion direction on the board connector attached to either the upper or lower surface of the circuit board. It is possible to eliminate the troublesome work of confirming the direction of alignment.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the auxiliary board mounting portion is configured to protrude from the outer surface of the connector housing. However, the present invention is not limited to such an embodiment, and the auxiliary board mounting portion is formed on the outer surface of the connector housing. And may be formed integrally.
(2) In the above embodiment, the terminal insertion holes are arranged in two rows in the upper and lower directions and four rows in the width direction. However, the present invention is not limited to such an embodiment, and the terminal insertion holes are symmetrical on the back wall. It only needs to be arranged line-symmetrically with respect to the axis S. For example, it may have a configuration of three stages in the upper and lower directions (middle stage terminal insertion holes are arranged along the symmetry axis S) and five rows in the width direction.
(3) In the above-described embodiment, the lock member for holding the fitting with the other connector (not shown) is provided on the board mounting surface side of the hood portion. However, the present invention is not limited to such a mode. Instead, the lock member may be provided on the side of the hood, for example.

10: Terminal fitting 20: Connector housing 23: Back wall 24: Lock claw (lock part)
26: Terminal insertion hole 28: Mounting portion 31: Insertion hole P: Circuit board S: Axis of symmetry

Claims (3)

A connector housing made of synthetic resin fixed to the substrate, and a terminal fitting that is press-fitted into a terminal insertion hole provided in a back wall of the connector housing and is bent toward the substrate and connected to the substrate. ,
The connector housing is provided with a lock portion that engages with the mating connector housing when the mating connector housing is fitted in a normal insertion posture, and holds the connector housings in a fitted state.
A board connector configured such that one surface of the connector housing contacting the board and the other surface on the opposite side are parallel to each other,
The terminal insertion hole is arranged so as to be line symmetric with respect to an intermediate position between the one surface and the opposite surface on the back wall,
A connector for a board, wherein the connector housing is provided with attachment portions for fixing to the board corresponding to the one surface and the other surface, respectively.   The board connector according to claim 1, wherein the attachment portion is provided with an insertion hole for a fixing screw that is screwed to the board to fix the connector housing. The mounting portion is formed integrally with the connector housing,
The board connector according to claim 2, wherein the insertion hole is provided so as to penetrate from the one surface to the other surface in a direction orthogonal to the one surface.

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